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INTERVIEW | JOHN CORCORAN


Above: Team in Hammersmith tunnels, on London Tideway


As an example, Charles Allen spoke


at the 2024 BTS Harding Lecture about one section of the secondary lining carried out on Tideway tunnel - “that I had worked on (thanks for the reminder Charles!). “We cast the secondary lining directly


up to the primary shotcrete lining and it caused cracking in the tunnel crown. During questions, Dave Hindle said the exact the same thing had happened to him many years previously. So we need a mechanism where we can continue to learn from each other.” A few years later, Ivor Thomas was


about to become Chair and, John says, “he encouraged me (as only Ivor can) to rejoin


the Committee; but it was never in my head to become Chair. “I then became heavily involved in the ‘BTS


at 50’ book; I did a lot of the research and interviewing. One particularly memorable one involved a visit to the brother of Harry Lyle, to interview two old miners, Jock Lyle and John Sheridan, talking about their careers in tunnelling. Please read the book (page 100) if you want to know more. “I think Ken Spiby has done an amazing


job keeping that all together. The book is now out, and we are receiving wonderful feedback on the quality and content. If anyone has not yet purchased a copy, it is still available (go onto the BTS website


to order), but get in quick, as only a fixed number were printed. “I am helping John Scholey with


organising the BTS Annual Dinner, which again I really enjoy, particularly the food and wine sampling session The Brewery runs, to enable the menu to be selected. I can assure our members that I personally work extremely hard at that session, insisting for example on sampling every one of the wines on offer. I think, overall, the British Tunnelling Society is a fantastic organisation. It is not too bureaucratic, and it does a lot of good. “I am keen to get feedback about what


our members want from the Committee, and how can we best support them? I know quite a lot of people in the tunnelling industry, and it is good that I can draw upon them if I need any help or they can help to promote BTS events and training courses. “And, I’d like to encourage as many people


as possible to put themselves forward to join the Committee.” A call for nominations goes out March/


April each year. “The Committee should truly represent


Above: Charity night singing contribution in Belfast 36 | April 2025


the range of tasks that we do in the tunnelling industry, to reflect the diversity of skills required to construct tunnels. I’m not sure that the workforce themselves get represented very well. If there is anyone out there that would like to put themselves forward, I’d be really keen on that.”


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